Just so you don't walk out to your car with just a 10mm wrench and get pist, bring a modest sized philips and a flat head. If you don't have a flat head I found that the tip of your Lexus key works just dandy to take the two black caps off that you will see on the inner side of the tailights (towards the center of the vehicle) on the outside once you open your trunk that will expose the two philips head screws (which could also be taken off with a socket I guess). But bluelex is right, takes no time at all, just the same amount of time to change one freaking bulb, but I love Lexus ya know?